<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>R: Choice of Brand for Yogurts</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="R.css" />
</head><body>

<table width="100%" summary="page for Yogurt"><tr><td>Yogurt</td><td style="text-align: right;">R Documentation</td></tr></table>

<h2>Choice of Brand for Yogurts </h2>

<h3>Description</h3>

<p>a cross-section
</p>
<p><em>number of observations</em> :  2412
</p>
<p><em>observation</em> :  individuals
</p>
<p><em>country</em> :  United States
</p>


<h3>Usage</h3>

<pre>data(Yogurt)</pre>


<h3>Format</h3>

<p>A dataframe containing :
</p>

<dl>
<dt>id</dt><dd><p>individuals identifiers</p>
</dd>
<dt>choice</dt><dd>
<p>one of <code>yoplait</code>, <code>dannon</code>, 
<code>hiland</code>, <code>weight</code> (weight 
watcher)
</p>
</dd>
<dt>feat.z</dt><dd>
<p>is there a newspaper feature 
advertisement for brand z?
</p>
</dd>
<dt>price.z</dt><dd><p>price of brand z</p>
</dd>
</dl>



<h3>Source</h3>

<p>Jain, Dipak C.,  Naufel J.    Vilcassim and  Pradeep K.  Chintagunta (1994) &ldquo;A random&ndash;coefficients logit brand&ndash;choice model applied to panel data&rdquo;, <em>Journal of Business and Economics Statistics</em>, <b>12(3)</b>, 317.
</p>


<h3>References</h3>

<p>Journal of Business Economics and Statistics web site : <a href="http://amstat.tandfonline.com/loi/ubes20">http://amstat.tandfonline.com/loi/ubes20</a>.
</p>


<h3>See Also</h3>

<p><code>Index.Source</code>, <code>Index.Economics</code>, <code>Index.Econometrics</code>, <code>Index.Observations</code></p>


</body></html>
